EP1251710A1 - Verfahren und Vorrichtung zur Migration von Teilnehmern zwischen Netzen - Google Patents

Verfahren und Vorrichtung zur Migration von Teilnehmern zwischen Netzen Download PDF

Info

Publication number
EP1251710A1
EP1251710A1 EP02252084A EP02252084A EP1251710A1 EP 1251710 A1 EP1251710 A1 EP 1251710A1 EP 02252084 A EP02252084 A EP 02252084A EP 02252084 A EP02252084 A EP 02252084A EP 1251710 A1 EP1251710 A1 EP 1251710A1
Authority
EP
European Patent Office
Prior art keywords
network
call
subscribers
gmsc
hlr
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02252084A
Other languages
English (en)
French (fr)
Inventor
Scott Douglas Olmstead
Ben Champion Tang
Gregory Tretyak
David George Yost
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of EP1251710A1 publication Critical patent/EP1251710A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H04W8/28—Number portability ; Network address portability

Definitions

  • This invention relates to communication systems, including but not limited to migration of subscribers between wireless communication systems.
  • Various types of cellular communication systems are known to provide radio telephone service to a large number of mobile subscribers using a relatively small number of frequencies. Such service is provided by dividing a service area into a number of cells and reusing the frequencies in non-adjacent cells. This cellular principle has permitted a large growth in the amount of wireless telecommunications that may be carried over the allocated radio spectrum, thus providing significant expansion in the number of wireless communication subscribers.
  • Different cellular technologies or protocols include analog, time division multiple access (TDMA), code division multiple access (CDMA), Global System for Mobile Communications (GSM), and Universal Mobile Telecommunications System (UMTS).
  • mobile network providers also known as service providers or network operators
  • service providers or network operators desire to change technologies, for example, to abandon less efficient technologies or to obtain more services, resources, efficiency, and/or voice quality provided by more advanced technologies.
  • Issues regarding the migration of subscribers from a network based on one technology to a network based on another technology need to be resolved.
  • the network provider may prefer to maintain the same phone numbers for its subscribers and to have the migration appear seamless to its subscribers.
  • a method of migrating subscribers from a first network to a second network comprises the steps of transferring at least one connection from at least one other network to a gateway mobile switching center of the second network and directing a call from the at least one other network to a subscriber at the first network to the gateway mobile switching center of the second network.
  • the following describes an apparatus for and method of migrating subscribers from a first network to a second network without requiring the subscribers to obtain new phone numbers.
  • GMSC gateway mobile switching center
  • All calls for the first network and the second network are directed to the GMSC of the second network, which queries the home location register (HLR) of the second network for terminating subscriber routing information.
  • HLR home location register
  • FIG. 1 A block diagram of a first network and a second network is shown in FIG. 1.
  • a network provider operates Network A ("first network") 101 and has a plurality of mobile stations or mobile subscribers 103 (only one is shown for the sake of simplicity).
  • the MS 103 communicates via wireless communication resources to one or more base station systems 105 (only one is shown for the sake of simplicity).
  • Inbound and outbound communications from/to the subscribers 103 are controlled via the network's 101 infrastructure, including devices such as a visited mobile switching center 107, an HLR 111, and a GMSC 109, as known in the art.
  • the GMSC 109 receives calls from other networks 113, including wireline networks, such as the Public Switched Telephone Network (PSTN), and wireless networks, such as a Public Land Mobile Network (PLMN), analog, time division multiple access (TDMA), code division multiple access (CDMA), Global System for Mobile Communications (GSM), and Universal Mobile Telecommunications System (UMTS), among others.
  • PSTN Public Switched Telephone Network
  • PLMN Public Land Mobile Network
  • TDMA time division multiple access
  • CDMA code division multiple access
  • GSM Global System for Mobile Communications
  • UMTS Universal Mobile Telecommunications System
  • Network B 115 is built according to the network provider's specifications, including appropriate infrastructure devices, e.g., one or more BSSs 119, one or more VMSCs 121, a GMSC 123, and an HLR 125, prior to registration or transfer of any of the service provider's subscribers 103 to Network B 115.
  • Network B 115 is also connected to any other networks 113, such as those described above, with which communication is desired. All subscriber data from Network A 101 may be pre-populated in the HLR 125 of Network B 115, although the subscribers may not yet be activated.
  • Network B 115 As the network provider is ready to migrate a subscriber from Network A 101 to Network B 115, the network provider activates the HLR for that subscriber in Network B 115. Subscribers may be activated one or more at a time. Network B 115 may be tested using one or more mobile subscribers 117 prior to bringing the new network 115 on line for present subscribers 103. Prior to bringing Network B fully on-line, trunks from Network A 101 to the other networks 113 must be moved to the GMSC 123 of Network B 115.
  • Network A 101 and Network B 115 may be any wireless networks, such as analog, TDMA, CDMA, CDMA 2000, UMTS, and GSM.
  • the network provider may desire to migrate its subscribers from a TDMA system to a GSM system.
  • FIG. 2 A block diagram showing the first network interconnected with the second network is shown in FIG. 2.
  • Network A 101 is disconnected from the other networks 113, and all calls directed to Network A 101 by routing them to the GMCS 123 based on the called or dialed number. Connections between Network A 101 and Network B are established to enable calls to be forwarded between the networks, and particularly for incoming calls for Network A 101 to be forwarded from the GMSC 123 to Network A 101. All calls directed to Network B 115 are also directed to the GMSC 123 of Network B 115.
  • the GMSC 123 is an interface point to the other networks 113 and typically queries the HLR 125 and routes calls to an appropriate (V)MSC or GMSC.
  • Interconnections between Network A 101 and Network B 115 are also established to enable calls to be sent on from the GMSC 123 to Network A 101.
  • trunks are established from the other networks 113 to the GMSC 123 of Network B 115.
  • the routing tables in the other networks 113 are updated to route calls directed to Network A 101 and calls directed to Network B 115 to use the trunks to the GMSC 123 of Network B 115.
  • the trunks from the other networks 113 to the GMSC 109 are then removed.
  • Each subscriber's directory number(s), features, and services are provisioned in the HLR 125 of Network B 115, thereby providing the capability for the subscriber's current (Network A 101) directory number to continue to be used by the subscriber when the subscriber migrates to Network B 115.
  • Each subscriber's number(s) as well as dialing plan or service features are activated by the service provider at the HLR 125 of Network B 115, typically as the network provider is ready to provide service to those subscribers.
  • the GMSC 123 of Network B needs to route calls for subscribers 103 in Network A 101 and subscribers 117 in Network B 115 to the appropriate network. To accomplish this task, the GMSC 123 queries the HLR 125 of Network B 115 for routing information for all calls, whether they are for Network A 101 or Network B 115. When the subscriber is provisioned and activated at the HLR 125, the call is routed to Network B 115. When the subscriber is not provisioned or not active at the HLR 125, the call is routed to Network A 101.
  • FIG. 2 Examples of call flows for both networks are shown in FIG. 2.
  • a call flow for a call directed to a subscriber 117 that is registered at Network B's HLR 125 is indicated by the numbers 1 through 6 in circles.
  • Calls for subscribers activated at Network B 115 take place as they would normally take place in a system of the technology of Network B 115.
  • the call comes in (1) to the GMSC 123 from one of the other networks 113.
  • the GMSC 123 queries (2) the HLR 125 of Network B 115, which returns (3) routing information for the subscriber 117 to the GMSC 123.
  • the GMSC 123 routes (4) the call to the appropriate VMSC 121, which routes (5) the call to the appropriate base station 119, which directs (6) the call in a wireless fashion to the MS 117.
  • the HLR 125 may send a message directed to Network A's HLR 111 that indicates that the subscriber is registered and active on Network B 115. In response to this message, Network A's HLR 111 may delete or deregister the HLR's record for the subscriber.
  • a call flow for a call directed to a subscriber 103 that is registered at Network A's HLR 111, but not Network B's HLR 125, is indicated by the numbers 1 through 9 in squares.
  • the call comes in [1] to the GMSC 123 from one of the other networks 113.
  • the GMSC 123 queries [2] the HLR 125 of Network B 115, which returns [3], to the GMSC 123, a message indicating that the subscriber 103 is not active or provisioned in the HLR 125.
  • the GMSC 123 then routes [4] the call to Network A 101.
  • the call may, for example, be routed to the GMSC 109 of Network A. At this point, the call proceeds as a call normally proceeds in Network A.
  • the GMSC 109 queries [5] the HLR 111 of Network A 101, which returns [6] routing information for the subscriber 103 to the GMSC 109.
  • the GMSC 109 routes [7] the call to the appropriate VMSC 107, which routes [8] the call to the appropriate base station 105, which directs [9] the call in a wireless fashion to the MS 103.
  • FIG. 3 A flowchart illustrating a method of migrating subscribers from a first network to a second network is shown in FIG. 3.
  • Network B 115 is installed and made operational, e.g., the GMSC 123 and the HLR 125 of Network B 115.
  • connections, such as trunks, between Network A 101 (the first network) and the other networks 113 are transferred from Network A 101 to the GMSC 123 of Network B 115 (the second network).
  • calls from the other networks 113 for Network A and Network B are directed to the GMSC 123 of Network B 115.
  • the GMSC 123 queries the HLR 125 for routing information to the call.
  • step 311 When routing information for the call is not available at step 309, the process continues with step 311, where the call is routed to Network A 101.
  • the HLR 111 of Network A 101 is queried for routing information for the call.
  • the call is then routed according to the routing information. In the event that routing information is not available for the call at Network A 101, the call is rejected.
  • step 313 When routing information for the call is available at step 309, the process continues with step 313, where the call is routed to Network B 115.
  • Outbound calls (calls from a Network B subscriber 117 to one of the other networks 113) for Network B subscribers 117 are handled normally for subscribers activated at Network B 115.
  • Outbound calls for Network A subscribers 103 are forwarded to Network B, where they are routed to other networks 113 by tandem switching.
  • FIG. 4 A timing diagram illustrating the migration of subscribers from a first network to a second network is shown in FIG. 4.
  • the timing diagram shows the total combined network capacity for both networks as time passes.
  • a linear decrease/increase in capacity is shown for network A/B for the sake of simplicity, although a continual, but not linear, decrease/increase is likely to occur.
  • Prior to Network B being placed on-line all subscribers 103 for the network provider are registered at Network A 101 and all traffic is at Network A. As subscribers 103 migrate to Network B, which process is controlled by the network provider, less Network A 101 traffic exists and more subscribers 117 are registered/located at Network B 115 and traffic at Network B increases.
  • Network A may be decommissioned and taken off line.
  • Network A may be utilized to service subscribers that have dual-mode subscriber devices, i.e., subscribers that operate on both Network A 101 and Network B 115.
  • the network provider may opt to leave Network A 101 active, at least for a time, for example, because subscribers wish to utilize Network A 101 for various reasons or because the network provider intends to sell the system.
  • the GMSC 123 of Network B needs to have the capacity to handle calls for both Network A and Network B, plus any new subscribers that may subscribe to the network during the migration period.
  • a separate HLR is shown for the two networks, a single dual-mode HLR (one that handles the technologies for both Network A and Network B) may be utilized.
  • the GMSC 123 query of a dual-mode HLR 125 may yield routing for a call to a particular network, i.e., Network A 101 or Network B, rather than provision and activation information for the called party at Network B 115.
  • each GMSC 109 or 123 may be co-located with a VMSC 107 or 121 in the GMSC's associated network.
  • the present invention gives a network provider the ability to migrate from one network to another network, regardless of the technology of either network, without requiring its subscribers to change phone numbers. Subscribers are also able to continue utilizing ancillary items associated with the phone number, such as business cards, stationary, and advertising media. Unless the subscriber needs to change phones to accommodate the second network's technology, e.g., when the subscriber does not have a dual-mode phone, the user will not experience a noticeable loss in service, provided the service provide registers the subscriber at the second network.

Landscapes

  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
EP02252084A 2001-04-18 2002-03-22 Verfahren und Vorrichtung zur Migration von Teilnehmern zwischen Netzen Withdrawn EP1251710A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US836988 2001-04-18
US09/836,988 US20020155834A1 (en) 2001-04-18 2001-04-18 Method and apparatus for migrating subscribers between networks

Publications (1)

Publication Number Publication Date
EP1251710A1 true EP1251710A1 (de) 2002-10-23

Family

ID=25273199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02252084A Withdrawn EP1251710A1 (de) 2001-04-18 2002-03-22 Verfahren und Vorrichtung zur Migration von Teilnehmern zwischen Netzen

Country Status (5)

Country Link
US (1) US20020155834A1 (de)
EP (1) EP1251710A1 (de)
JP (1) JP2003023494A (de)
KR (1) KR20020081078A (de)
CA (1) CA2377326C (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005107281A2 (en) 2004-04-28 2005-11-10 Motorola, Inc. Ad-hoc communication network and method
EP1817896A2 (de) * 2004-11-19 2007-08-15 Tekelec Verfahren und systeme zur signalisierung in einem kommunikationsnetzwerk bei portierten, migrierten und/oder dual-mode-teilnehmern
US7881666B2 (en) 2004-04-28 2011-02-01 Motorola, Inc. Ad-hoc communication network and method

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1350370B1 (de) 2000-12-14 2013-05-22 Bridgeport Networks, Inc. Anrufweiterleitung von einem privaten IP-Netzwerk zu einem drahtlosen Kommunikationsnetzwerk
US7142862B2 (en) * 2003-12-24 2006-11-28 Lucent Technologies Inc Intra-service number portability in wireless network
US7809381B2 (en) 2004-07-16 2010-10-05 Bridgeport Networks, Inc. Presence detection for cellular and internet protocol telephony
US7920529B1 (en) 2005-05-24 2011-04-05 At&T Mobility Ii Llc Intermediary query manager for 2G and 3G services
US20060294246A1 (en) * 2005-06-23 2006-12-28 Cisco Technology, Inc. Element designations for network optimization
US8195168B2 (en) * 2006-02-03 2012-06-05 Nokia Corporation Mechanism for controlling a transmission of data messages to user equipment by an external gateway
ES2702464T3 (es) 2009-06-17 2019-03-01 Bridgeport Networks Inc Detección de presencia mejorada para decisiones de enrutamiento

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5848144A (en) * 1996-10-03 1998-12-08 Pacific Bell Switch cutover with paced transition
US5890063A (en) * 1996-06-03 1999-03-30 Ericsson Inc. Downloading of routing numbers to donor switches within a telecommunications network

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5504804A (en) * 1994-01-19 1996-04-02 Telefonaktiebolaget Lm Ericsson Providing individual subscriber services in a cellular mobile communications network
US5878347A (en) * 1996-03-26 1999-03-02 Ericsson, Inc. Routing a data signal to a mobile station within a telecommunications network
US5978678A (en) * 1996-06-07 1999-11-02 Telefonaktiebolaget L M Ericsson (Publ) Cellular telephone network routing method and apparatus for internationally roaming mobile stations
US5933784A (en) * 1996-06-28 1999-08-03 Synacom Technology, Inc. Signaling gateway system and method
US6134316A (en) * 1996-10-18 2000-10-17 Telefonaktiebolaget Lm Ericsson Telecommunications network with relocateability of subscriber number
US6130939A (en) * 1997-08-08 2000-10-10 Telcordia Technologies, Inc. Apparatus and method for number portability call processing
KR100296144B1 (ko) * 1998-11-27 2001-08-07 오길록 번호이동성루팅데이터베이스를이용한서비스제공자번호이동성호제어방법
KR100333635B1 (ko) * 1999-07-26 2002-04-24 오길록 서비스 제어기에서의 번호 이동성 루팅 처리 방법
KR100642458B1 (ko) * 1999-11-16 2006-11-02 주식회사 케이티 이기종 이동통신시스템에서의 가입자 이동성 관리 방법
KR100657124B1 (ko) * 2000-11-01 2006-12-12 주식회사 케이티 이동전화의 번호이동성 제공방법
KR20020069975A (ko) * 2001-02-28 2002-09-05 에스케이 텔레콤주식회사 상이한 시스템이 혼합된 이동통신망에서의 번호 이동성제공장치 및 방법
US20020123307A1 (en) * 2001-03-03 2002-09-05 Tyson Winarski Wireless based system for managing the use of wireless communications and micoprocessor-based systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5890063A (en) * 1996-06-03 1999-03-30 Ericsson Inc. Downloading of routing numbers to donor switches within a telecommunications network
US5848144A (en) * 1996-10-03 1998-12-08 Pacific Bell Switch cutover with paced transition

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005107281A2 (en) 2004-04-28 2005-11-10 Motorola, Inc. Ad-hoc communication network and method
EP1741302A2 (de) * 2004-04-28 2007-01-10 Motorola, Inc. Ad-hoc-kommunikationsnetz und verfahren
EP1741302A4 (de) * 2004-04-28 2010-05-05 Motorola Inc Ad-hoc-kommunikationsnetz und verfahren
US7881666B2 (en) 2004-04-28 2011-02-01 Motorola, Inc. Ad-hoc communication network and method
EP1817896A2 (de) * 2004-11-19 2007-08-15 Tekelec Verfahren und systeme zur signalisierung in einem kommunikationsnetzwerk bei portierten, migrierten und/oder dual-mode-teilnehmern
EP1817896A4 (de) * 2004-11-19 2014-02-12 Tekelec Global Inc Verfahren und systeme zur signalisierung in einem kommunikationsnetzwerk bei portierten, migrierten und/oder dual-mode-teilnehmern

Also Published As

Publication number Publication date
CA2377326C (en) 2005-11-01
JP2003023494A (ja) 2003-01-24
US20020155834A1 (en) 2002-10-24
CA2377326A1 (en) 2002-10-18
KR20020081078A (ko) 2002-10-26

Similar Documents

Publication Publication Date Title
EP0890287B1 (de) Leitung eines ankommenden anrufes zu einer mobilstation innerhalb eines fernsprechnetzwerkes
FI87963B (fi) Foerfarande foer bildande av ett ankommande samtal till en radiotelefon i ett cellradiotelefonsystem
AU673690B2 (en) Method for call establishment
EP1135918B1 (de) Verfahren und system zum dynamischen umleiten von leitungsgebundener anrufzustellung
CA2274600C (en) Method for associating one directory number with two mobile stations within a mobile telecommunications network
US6049714A (en) Implementing number portability using a flexible numbering register and an interwork link register
CA2293710C (en) Location dependent service for mobile telephones
US6324396B1 (en) Calling party number provisioning
US7058415B2 (en) System for providing unified cellular and wire-line service to a dual mode handset
CA2229855A1 (en) Call routing to wireless roamers in mobile telecommunication systems
FI96815C (fi) Puhelunmuodostusmenetelmä
JP2006238450A (ja) カスタマイズされた位置登録エリア・クラスタ・ページング
EP0890283A1 (de) Leitweglenkung eines datensignals für eine portierte mobilstation innerhalb eines fernsprechnetzwerkes
AU6223294A (en) A method of restructuring a call signal frame in a cellular mobile telephone system
US7043248B2 (en) System and method for providing telecommunication services
EP0520049B1 (de) Verfahren zur vermittlung eines eingehenden gespräches an eine mobil-funkstation in einem zellular-mobilfunknetz
AU731960B2 (en) Using number portability database to solve call tromboning
CA2377326C (en) Method and apparatus for migrating subscribers between networks
US20040198362A1 (en) Procedure and system for setting up a telecommunication connection
US20050176421A1 (en) Multiple subscription service for wireless communications
WO2000033600A1 (en) Optimized routing of mobile calls within a telecommunications network
CN101047739B (zh) 一种实现单机多号业务的系统及其方法
CN101969628A (zh) Cdma网国际漫游回拨业务平台、系统和方法
EP1496718A1 (de) Verfahren und system zum virtuellen roaming und zur kommunikation in einem zellularen system
JP3028801B2 (ja) 移動通信システムと移動機およびその発信方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020412

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17Q First examination report despatched

Effective date: 20020917

AKX Designation fees paid

Designated state(s): DE FR GB

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20071002